An investment firm builds a feature store for alpha signals used by…

Question

An investment firm builds a feature store for alpha signals used by both research and live trading. What capability is essential?

Accepted Answer

Versioned feature definitions, point-in-time correct training joins, and parity between research and production computation paths. — Alpha feature stores need versioned defs, PIT joins, and research/prod parity — not silent notebook rewrites.

Answer

Allowing free-form notebook writes that silently change production feature definitions without review.

Answer

Storing only model weights without features.

Answer

Disabling access logs for performance.

An investment firm builds a feature store for alpha signals used by both research and live trading. What capability is essential?

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